CVE-2026-8570

Chromium: CVE-2026-8570 Type Confusion in V8

CVE-2026-8570 is fixed in 9 products on 3 platforms, first by Google Chrome Dev (EXE) 149.0.7779.3, released April 9, 2026. It is not reported as exploited. Patch Radar priority: Routine.

RoutineFixed on 3 platforms

CVSS

6.5

medium

Exploitation

None reported

No vendor assessment

CISA KEV

Not listed

Not in the Known Exploited Vulnerabilities catalog

EPSS

0.0025

16th percentile

<p>This CVE was assigned by Chrome. Microsoft Edge (Chromium-based) ingests Chromium, which addresses this vulnerability. Please see <a href="https://chromereleases.googleblog.com/2025">Google Chrome Releases</a> for more information</p>

Where it's fixed

Product	Fixed in	Fix	Released
Windows apps
Google Chrome (EXE)	148.0.7778.168	Google Chrome (EXE) 148.0.7778.168	May 12, 2026
Google Chrome Beta (EXE)	149.0.7827.3	Google Chrome Beta (EXE) 149.0.7827.3	May 6, 2026
Google Chrome Dev (EXE)	149.0.7779.3	Google Chrome Dev (EXE) 149.0.7779.3	Apr 9, 2026
Microsoft Edge	148.0.3967.70	Microsoft Edge 148.0.3967.70	May 15, 2026
Microsoft Edge Beta	151.0.4129.59	Microsoft Edge Beta 151.0.4129.59	Jul 31, 2026
Microsoft Edge Dev	152.0.4167.0	Microsoft Edge Dev 152.0.4167.0	Jul 20, 2026
Microsoft Edge WebView2 Runtime	148.0.3967.70	Microsoft Edge WebView2 Runtime 148.0.3967.70	May 15, 2026
macOS
Google Chrome	148.0.7778.216	Google Chrome 148.0.7778.216	May 26, 2026
Microsoft Edge	148.0.3967.83	Microsoft Edge 148.0.3967.83	May 21, 2026
Linux
chromium · Debian 12.15 (bookworm)	148.0.7778.167-1~deb12u1	DEBIAN-CVE-2026-8570	May 27, 2026
chromium · Debian 13.5 (trixie)	148.0.7778.167-1~deb13u1	DEBIAN-CVE-2026-8570	May 27, 2026
chromium · Debian 14	148.0.7778.167-1	DEBIAN-CVE-2026-8570	May 27, 2026
chromium · opensuse-leap 16.0	148.0.7778.215-bp160.1.1	OPENSUSE-SU-2026:20849-1	Aug 31, 2026

Details

Published
May 14, 2026
Weakness
CWE-843: Type Confusion
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Vendor advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-8570

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